Understanding it isn't the problem. It's when we put it up against everything else that's happened and alluded to, that confusion and questions come to mind.
Anons who think they understand, I ask you this. Why was the (i) missing? Is it no longer missing? And why talk shit directly at them, if missiles and can still be FF'd?
The point is no one without the 40k view, fully understands. We trust, but that's about all we can say when it comes to understanding.